Convert PNG to WebP — Smaller Files, Same Quality
Compress PNGs into modern WebP format locally. Faster pages, smaller files, total privacy.
Drop files or click to upload
Supports JPG, PNG, WebP, AVIF, HEIC, PDF, and more. Paste (Ctrl+V) works too.
How Our Privacy Engine Works
When you drop an image onto VisualConvert, our code runs entirely inside your device's web browser using modern web standards (Canvas API & WebAssembly). Unlike traditional converters that upload your photos to remote servers, process them there, and send them back, VisualConvert processes everything locally in your computer's memory. You can verify this anytime: open your browser's Developer Tools (F12), switch to the Network tab, and drop a file — you will see zero upload requests!
How to Convert Images
Three simple steps to process your files securely.
Drop Files
Drag and drop your images or click to browse. We support HEIC, WebP, PNG, JPG, and more.
Choose Format
Select your target format, quality, or exact file size target in kilobytes.
Download Instantly
Download single files or grab a ZIP archive of all your converted images immediately.
Why Client-Side is Better
See how we stack up against traditional cloud converters.
Local Processing
- Zero upload/download wait times
- 100% private (files stay on device)
- Works entirely offline once loaded
- No arbitrary server file size limits
Cloud Converters
- × Slow uploads for large batches
- × Files stored on third-party servers
- × Fails without internet connection
- × Strict megabyte limits per file
Related Conversions
Quick links to our most used tools.
Frequently Asked Questions
Are my files uploaded to a server?
No. VisualConvert processes everything locally within your web browser using HTML5 Canvas and WebAssembly. Your files never leave your device.
Is there a limit to how many files I can convert?
Free users can process a limited batch size at once. Pro users unlock massive batches and advanced sizing algorithms.
Does this work on mobile devices?
Yes, our client-side engine works on any modern browser including Chrome, Safari, and Firefox on iOS and Android.
How do you achieve exact file sizes (e.g., under 100KB)?
We use a smart binary search algorithm that repeatedly compresses the image locally until it precisely hits your requested target size without sacrificing unnecessary quality.
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